Update mmw_computer to stable source

It seems that enehand/Custom_V2_MicroWakeWords completely disappeared,
which broke the original path. Update to using my fork of
JohnnyPrimus/Custom_V2_MicroWakeWords instead, so that this is 100%
stable going forward.

supersensor.yaml

@@ -386,7 +386,7 @@ micro_wake_word:
     gain_factor: 8
   stop_after_detection: false
   models:
-    - model: github://genehand/Custom_V2_MicroWakeWords/models/computer/computer.json@update-json
+    - model: github://joshuaboniface/Custom_V2_MicroWakeWords/models/computer/computer.json
       id: mww_computer
     - model: github://esphome/micro-wake-word-models/models/v2/hey_jarvis.json
       id: mww_hey_jarvis